Home / 313,904.20-470,856.30-136,611.40

Finding the Fourth Proportional to 313,904.20, 470,856.30 and 136,611.40

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Solution

The fourth proportional to 313,904.20, 470,856.30 and 136,611.40 is: 204,917.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,904.20 : 470,856.30 = 136,611.40 : x
  2. Step 2: Convert to fraction form
    313,904.20/470,856.30 = 136,611.40/x
  3. Step 3: Cross multiply
    313,904.20x = 470,856.30 × 136,611.40
  4. Step 4: Simplify right side
    313,904.20x = 64,324,338,341.82
  5. Step 5: Solve for x
    x = 64,324,338,341.82/313,904.20
  6. Step 6: Final answer
    x = 204,917.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.